1342390571 has 2 divisors, whose sum is σ = 1342390572. Its totient is φ = 1342390570.

The previous prime is 1342390549. The next prime is 1342390579. The reversal of 1342390571 is 1750932431.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1342390571 is a prime.

It is not a weakly prime, because it can be changed into another prime (1342390579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671195285 + 671195286.

It is an arithmetic number, because the mean of its divisors is an integer number (671195286).

Almost surely, 2^1342390571 is an apocalyptic number.

1342390571 is a deficient number, since it is larger than the sum of its proper divisors (1).

1342390571 is an equidigital number, since it uses as much as digits as its factorization.

1342390571 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 1342390571 is about 36638.6485968028. The cubic root of 1342390571 is about 1103.1289893855.

The spelling of 1342390571 in words is "one billion, three hundred forty-two million, three hundred ninety thousand, five hundred seventy-one".